Release time：2020-01-16 18:44 Browse：
| Drill Point | Drilling Capacity | Steel Thickness | Common Use |
|---|---|---|---|
| #3 Point | ~3–5 mm (1/8"–3/16") | Thin to medium-gauge steel | Light steel framing, sheet metal |
| #5 Point | ~10–12 mm (up to 1/2") | Thick structural steel | Heavy-duty steel, thick beams |
| Application Area | Recommended Drill Point |
|---|---|
| Roofing sheets, aluminum panels | #3 |
| Light steel purlins (C/Z shape) | #3 or #4 |
| Thick steel beams (H-beam, I-beam) | #5 |
| Curtain wall systems, solar brackets | #5 |
| Multi-layer steel sheets | #5 |
Using a #3 point on thick steel = drill won't penetrate, risks screw failure or burning out the point.
Using a #5 point on thin material = slower drilling, overkill, and higher cost.
Always match drill point to steel thickness (you can use a caliper or thickness chart).
For 350mm+ long screws, use #5 if fixing into thick steel base to ensure full penetration.
If unsure, test both on your material – or ask your supplier for specs.
